File:Electron avalanche.gif

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Summary

Description	English: Visualisation of an electron avalanche, also known as a Townsend discharge or a townsend avalanche. The applied electric field accelerates free electrons to collide with other atoms and release further electrons, causing an avalanche. This phenomena is used in a variety of radiation and particle detection instruments where the gas multiplication effect is used. This includes Geiger-Muller counters and Proportional counters.
Date	22 October 2012, 21:57:58
Source	Own work
Author	Dougsim

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